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1. 发明授权

US5818469A Graphics interface processing methodology in symmetric multiprocessing or distributed network environments 失效
标题翻译：对称多处理或分布式网络环境中的图形接口处理方法
公开(公告)号：US5818469A
公开(公告)日：1998-10-06
申请号：US827740
申请日：1997-04-10
申请人： John Joseph Lawless , Bimal Poddar , Alice Elizabeth Putney , Harald Jean Smit
发明人： John Joseph Lawless , Bimal Poddar , Alice Elizabeth Putney , Harald Jean Smit
IPC分类号： G06F9/46 , G06F9/48 , G06T1/20 , G06F15/00
CPC分类号： G06F9/4843 , G06F9/52 , G06T1/20
摘要： A method and implementing multiprocessor computer system 200 in which graphics applications 101 are executed in conjunction with a graphics interface 103 to graphics hardware 115. The methodology is also applicable to an implementing distributed network system. A master thread 105, or master node in a distributed network system, receives commands from a graphics application 101 and assembles 313 the commands into workgroups with an associated workgroup control block 315 and a synchronization tag 317. For each workgroup, the master thread flags changes in the associated workgroup control block. At the end of each workgroup, the master thread copies the changed attributes into the associated workgroup control block 319. The workgroup control blocks are scanned 403 by the rendering threads, or rendering node in a distributed network system, and unprocessed workgroups are locked 406, and the rendering threads attribute state is updated 413 from the previous workgroup control blocks. Once the rendering thread has updated its attributes, it has the necessary state to independently process the workgroup, thus allowing parallel execution. A synchronizer thread reorders the graphics datastream, created by the rendering threads, using the synchronization tags and sequentially sends the resultant data to the graphics hardware 115.
摘要翻译：一种方法和实现多处理器计算机系统200，其中图形应用程序101与图形接口103一起执行到图形硬件115.该方法还可应用于实现的分布式网络系统。分布式网络系统中的主线程105或主节点从图形应用程序101接收命令，并将命令组装成具有相关联的工作组控制块315和同步标签317的工作组。对于每个工作组，主线程标志改变在相关联的工作组控制块中。在每个工作组的最后，主线程将改变的属性复制到相关联的工作组控制块319中。由分布式网络系统中的呈现线程或呈现节点扫描工作组控制块403，并且未处理的工作组被锁定406，并且从先前的工作组控制块更新413渲染线程属性状态。一旦渲染线程已更新其属性，它具有独立处理工作组的必要状态，从而允许并行执行。同步器线程使用同步标签重新排列由渲染线程创建的图形数据流，并将结果数据顺序地发送到图形硬件115。

2. 发明申请

US20100253850A1 VIDEO PRESENTATION SYSTEM 审中-公开
标题翻译：视频演示系统
公开(公告)号：US20100253850A1
公开(公告)日：2010-10-07
申请号：US12417775
申请日：2009-04-03
申请人： Daniel Stephen Cooper , Kenneth Carlton Cooper , Paul Martin Russell , Michael Wayne Imhoff , John Joseph Lawless , Alexandru Mihail Itu , Them Dac Ninh
发明人： Daniel Stephen Cooper , Kenneth Carlton Cooper , Paul Martin Russell , Michael Wayne Imhoff , John Joseph Lawless , Alexandru Mihail Itu , Them Dac Ninh
IPC分类号： H04N9/74
CPC分类号： H04N9/75 , G06Q10/00 , H04N7/147 , H04N7/155 , H04N21/4223 , H04N21/4334 , H04N21/4788
摘要： A video presentation system including a single physical computing device, a video capture device in communication with the physical computing device; and a computer readable medium readable by the physical computing device and including a video capture code segment for reading a video signal comprising a first plurality of pixels from the video capture device and storing the first set of pixels a buffer, an desktop capture code segment for capturing a content of a desktop of physical computing device and storing the content of the desktop in a buffer, and a chroma key code segment for setting a color value for a pixel in a buffer equal based on the color information of another pixel in another buffer.
摘要翻译：一种视频呈现系统，包括单个物理计算设备，与所述物理计算设备通信的视频捕获设备; 以及由所述物理计算设备可读的计算机可读介质，并且包括用于从所述视频捕获设备读取包括第一多个像素的视频信号并将所述第一组像素存储在缓冲器中的视频捕获代码段，用于捕获物理计算设备的桌面的内容并将桌面的内容存储在缓冲器中，以及色度键代码段，用于根据另一个缓冲器中的另一个像素的颜色信息来设置缓冲器中的像素的颜色值相等。

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